Keysight basic DC power supplies offer essential features for a tight budget. The triple output, 80 W, GPIB, E3631A provides small, compact size for bench use; low output ripple and noise; built-in measurements and basic programmable features with GPIB and RS232 interface. This clean and reliable supply is designed for general purpose applications; and combines convenient benchtop capabilities with flexible system features in a compact, multi-output package.